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KMID : 0368120020320110965
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Korean Circulation Journal
2002 Volume.32 No. 11 p.965 ~ p.973
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Long-term Clinical Outcomes of Single Long Coronary Stent
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이승환/Seung Whan Lee
이재환/김영학/김준/김준홍/이철환/홍명기/김재중/박성욱/박승정/Jae Hwan Lee/Young Hak Kim/Jun Kim/June Hong Kim/Cheol Whan Lee/Myeong Ki Hong/Jae Joong Kim/Seong Wook Park/Seung Jung Park
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Abstract
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Background and Objectives: The aim of this study was to evaluate clinical outcomes following single long coronary stenting.
Subjects and Methods: We evaluated the short- and long-term clinical outcomes in 935 consecutive patients with single long （≥18 ㎜） coronary stents. The patients were divided into three groups according to the stent length：（1） Group A, 445 patients, 18 mm≤length <25 ㎜, （2） Group B, 322 patients, 25 ㎜≤length<30 ㎜, （3） Group C, 168 patients, length ≥30 ㎜.
Results：There were no significant differences in the baseline clinical characteristics between the 3 groups. Group A had larger reference vessel sizes （3.33±0.40 ㎜ vs. 3.18±0.50 ㎜ in the other groups, p<0.001） and stent diameters （3.46±0.40 ㎜ vs. 3.27±0.42 ㎜ in the other groups, p<0.001）. One-year clinical follow-up and 6-month angiographic follow-up were possible in all patients, and for 578 of the lesions （62%）, respectively. The longer the stent, the higher the in-stent restenosis （A：B：C＝20.3%：27.1%：35.7%, respectively, p＝0.008）. For the cases where the stent diameter was ≥3.5 ㎜, the in-stent restenosis rates were similar between the 3 groups （16.2%：23.0%：21.1%, respectively, p＝0.43）. There were no significant differences in the 1-year cumulative TLR（8.3±1.4%：11.1±1.9%：12.8±2.8%, respectively, p＝0.22） and the overall cardiac event （death, myocardial infarction, and TLR）-free survivals（89.9±1.5%：88.1±1.9%：85.3±2.9%, respectively, p＝0.31） between the 3 groups.
Conclusion: The long-term clinical outcomes following single long coronary stenting are acceptable. The single long coronary stents of ≥3.5 mm could be a useful therapeutic option for diffuse coronary lesions.
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KEYWORD
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Angioplasty, transluminal, percutaneous coronary, Stents, Follow-up studies,
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